Intensive Cognitive-Behavioral Therapy: After subjects complete the pre-treatment assessments, the study therapist will meet with participants to design their treatment program. Treatment will be conducted every day for 15 days, Monday through Friday, for 90-minute sessions. In addition, as a part of therapy, subjects will complete homework assignments daily. Intensive CBT for BDD is done in the form of Exposure and Response Prevention (ERP) with either the mirror retraining method or the crooked mirror externalization therapy. This involves prolonged and repeated exposures to images of the perceived defects, and prevention of ritualistic behavior (e.g., camouflaging with cosmetics, skin-picking, etc.).